<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>叠叠高游戏 =====> CSS版</title>
  <link rel="stylesheet" href="./叠叠高游戏.css">
</head>
<body>
  <form class="screen" novalidate>
    <input id="start" type="checkbox" tabindex="-1">
    <input id="end" type="checkbox" tabindex="-1">
    <input id="last" type="checkbox" tabindex="-1">
    <div class="sky">
      <div></div>
      <div></div>
    </div>
    <div class="base">
      <input type="checkbox" tabindex="-1" required>
      <div class="container horizontal">
        <div class="block floating horizontal"></div>
        <div class="block horizontal">
          <input type="checkbox" tabindex="-1">
          <div class="container vertical">
            <div class="block floating vertical"></div>
            <div class="block vertical">
              <input type="checkbox" tabindex="-1">
              <div class="container horizontal">
                <div class="block floating horizontal"></div>
                <div class="block horizontal">
                  <input type="checkbox" tabindex="-1">
                  <div class="container vertical">
                    <div class="block floating vertical"></div>
                    <div class="block vertical">
                      <input type="checkbox" tabindex="-1">
                      <div class="container horizontal">
                        <div class="block floating horizontal"></div>
                        <div class="block horizontal">
                          <input type="checkbox" tabindex="-1">
                          <div class="container vertical">
                            <div class="block floating vertical"></div>
                            <div class="block vertical">
                              <input type="checkbox" tabindex="-1">
                              <div class="container horizontal">
                                <div class="block floating horizontal"></div>
                                <div class="block horizontal">
                                  <input type="checkbox" tabindex="-1">
                                  <div class="container vertical">
                                    <div class="block floating vertical"></div>
                                    <div class="block vertical">
                                      <input type="checkbox" tabindex="-1">
                                      <div class="container horizontal">
                                        <div class="block floating horizontal"></div>
                                        <div class="block horizontal">
                                          <input type="checkbox" tabindex="-1">
                                          <div class="container vertical">
                                            <div class="block floating vertical"></div>
                                            <div class="block vertical">
                                              <input type="checkbox" tabindex="-1">
                                              <div class="container horizontal">
                                                <div class="block floating horizontal"></div>
                                                <div class="block horizontal">
                                                  <input type="checkbox" tabindex="-1">
                                                  <div class="container vertical">
                                                    <div class="block floating vertical"></div>
                                                    <div class="block vertical">
                                                      <input type="checkbox" tabindex="-1">
                                                      <div class="container horizontal">
                                                        <div class="block floating horizontal"></div>
                                                        <div class="block horizontal">
                                                          <input type="checkbox" tabindex="-1">
                                                          <div class="container vertical">
                                                            <div class="block floating vertical"></div>
                                                            <div class="block vertical">
                                                              <input type="checkbox" tabindex="-1">
                                                              <div class="container horizontal">
                                                                <div class="block floating horizontal"></div>
                                                                <div class="block horizontal">
                                                                  <input type="checkbox" tabindex="-1">
                                                                  <div class="container vertical">
                                                                    <div class="block floating vertical"></div>
                                                                    <div class="block vertical">
                                                                      <input type="checkbox" tabindex="-1">
                                                                      <div class="container horizontal">
                                                                        <div class="block floating horizontal"></div>
                                                                        <div class="block horizontal">
                                                                          <input type="checkbox" tabindex="-1">
                                                                          <div class="container vertical">
                                                                            <div class="block floating vertical"></div>
                                                                            <div class="block vertical">
                                                                              <input type="checkbox" tabindex="-1">
                                                                              <div class="container horizontal">
                                                                                <div class="block floating horizontal"></div>
                                                                                <div class="block horizontal">
                                                                                  <input type="checkbox" tabindex="-1">
                                                                                  <div class="container vertical">
                                                                                    <div class="block floating vertical"></div>
                                                                                    <div class="block vertical">
                                                                                      <input type="checkbox" tabindex="-1">
                                                                                      <div class="container horizontal">
                                                                                        <div class="block floating horizontal"></div>
                                                                                        <div class="block horizontal">
                                                                                          <input type="checkbox" tabindex="-1">
                                                                                          <div class="container vertical">
                                                                                            <div class="block floating vertical"></div>
                                                                                            <div class="block vertical">
                                                                                              <input type="checkbox" tabindex="-1">
                                                                                              <div class="container horizontal">
                                                                                                <div class="block floating horizontal"></div>
                                                                                                <div class="block horizontal">
                                                                                                  <input type="checkbox" tabindex="-1">
                                                                                                  <div class="container vertical">
                                                                                                    <div class="block floating vertical"></div>
                                                                                                    <div class="block vertical">
                                                                                                      <input type="checkbox" tabindex="-1">
                                                                                                      <div class="container horizontal">
                                                                                                        <div class="block floating horizontal"></div>
                                                                                                        <div class="block horizontal">
                                                                                                          <input type="checkbox" tabindex="-1">
                                                                                                          <div class="container vertical">
                                                                                                            <div class="block floating vertical"></div>
                                                                                                            <div class="block vertical">
                                                                                                              <input type="checkbox" tabindex="-1">
                                                                                                              <div class="container horizontal">
                                                                                                                <div class="block floating horizontal"></div>
                                                                                                                <div class="block horizontal">
                                                                                                                  <input type="checkbox" tabindex="-1">
                                                                                                                  <div class="container vertical">
                                                                                                                    <div class="block floating vertical"></div>
                                                                                                                    <div class="block vertical">
                                                                                                                      <input type="checkbox" tabindex="-1">
                                                                                                                      <div class="container horizontal">
                                                                                                                        <div class="block floating horizontal"></div>
                                                                                                                        <div class="block horizontal">
                                                                                                                          <input type="checkbox" tabindex="-1">
                                                                                                                          <div class="container vertical">
                                                                                                                            <div class="block floating vertical"></div>
                                                                                                                            <div class="block vertical">
                                                                                                                              <input type="checkbox" tabindex="-1">
                                                                                                                              <div class="container horizontal">
                                                                                                                                <div class="block floating horizontal"></div>
                                                                                                                                <div class="block horizontal">
                                                                                                                                  <input type="checkbox" tabindex="-1">
                                                                                                                                  <div class="container vertical">
                                                                                                                                    <div class="block floating vertical"></div>
                                                                                                                                    <div class="block vertical">
                                                                                                                                      <input type="checkbox" tabindex="-1">
                                                                                                                                      <div class="container horizontal">
                                                                                                                                        <div class="block floating horizontal"></div>
                                                                                                                                        <div class="block horizontal">
                                                                                                                                          <input type="checkbox" tabindex="-1">
                                                                                                                                          <div class="container vertical">
                                                                                                                                            <div class="block floating vertical"></div>
                                                                                                                                            <div class="block vertical">
                                                                                                                                              <input type="checkbox" tabindex="-1">
                                                                                                                                              <div class="container horizontal">
                                                                                                                                                <div class="block floating horizontal"></div>
                                                                                                                                                <div class="block horizontal">
                                                                                                                                                  <input type="checkbox" tabindex="-1">
                                                                                                                                                  <div class="container vertical">
                                                                                                                                                    <div class="block floating vertical"></div>
                                                                                                                                                    <div class="block vertical">
                                                                                                                                                      <input type="checkbox" tabindex="-1">
                                                                                                                                                      <div class="container horizontal">
                                                                                                                                                        <div class="block floating horizontal"></div>
                                                                                                                                                        <div class="block horizontal">
                                                                                                                                                          <input type="checkbox" tabindex="-1">
                                                                                                                                                          <div class="container vertical">
                                                                                                                                                            <div class="block floating vertical"></div>
                                                                                                                                                            <div class="block vertical">
                                                                                                                                                              <input type="checkbox" tabindex="-1">
                                                                                                                                                              <div class="container horizontal">
                                                                                                                                                                <div class="block floating horizontal"></div>
                                                                                                                                                                <div class="block horizontal">
                                                                                                                                                                  <input type="checkbox" tabindex="-1">
                                                                                                                                                                  <div class="container vertical">
                                                                                                                                                                    <div class="block floating vertical"></div>
                                                                                                                                                                    <div class="block vertical">
                                                                                                                                                                      <input type="checkbox" tabindex="-1">
                                                                                                                                                                      <div class="container horizontal">
                                                                                                                                                                        <div class="block floating horizontal"></div>
                                                                                                                                                                        <div class="block horizontal">
                                                                                                                                                                          <input type="checkbox" tabindex="-1">
                                                                                                                                                                          <div class="container vertical">
                                                                                                                                                                            <div class="block floating vertical"></div>
                                                                                                                                                                            <div class="block vertical">
                                                                                                                                                                              <input type="checkbox" tabindex="-1">
                                                                                                                                                                              <div class="container horizontal">
                                                                                                                                                                                <div class="block floating horizontal"></div>
                                                                                                                                                                                <div class="block horizontal">
                                                                                                                                                                                  <input type="checkbox" tabindex="-1">
                                                                                                                                                                                  <div class="container vertical">
                                                                                                                                                                                    <div class="block floating vertical"></div>
                                                                                                                                                                                    <div class="block vertical">
                                                                                                                                                                                      <input type="checkbox" tabindex="-1">
                                                                                                                                                                                      <div class="container horizontal">
                                                                                                                                                                                        <div class="block floating horizontal"></div>
                                                                                                                                                                                        <div class="block horizontal">
                                                                                                                                                                                          <input type="checkbox" tabindex="-1">
                                                                                                                                                                                          <div class="container vertical">
                                                                                                                                                                                            <div class="block floating vertical"></div>
                                                                                                                                                                                            <div class="block vertical">
                                                                                                                                                                                              <input type="checkbox" tabindex="-1">
                                                                                                                                                                                              <div class="container horizontal">
                                                                                                                                                                                                <div class="block floating horizontal"></div>
                                                                                                                                                                                                <div class="block horizontal">
                                                                                                                                                                                                  <input type="checkbox" tabindex="-1">
                                                                                                                                                                                                  <div class="container vertical">
                                                                                                                                                                                                    <div class="block floating vertical"></div>
                                                                                                                                                                                                    <div class="block vertical">
                                                                                                                                                                                                      <input type="checkbox" tabindex="-1">
                                                                                                                                                                                                      <div class="container horizontal">
                                                                                                                                                                                                        <div class="block floating horizontal"></div>
                                                                                                                                                                                                        <div class="block horizontal">
                                                                                                                                                                                                          <label class="last" for="last" tabindex="-1"></label>
                                                                                                                                                                                                          <div class="container vertical">
                                                                                                                                                                                                            <div class="block floating vertical"></div>
                                                                                                                                                                                                            <div class="block vertical">
                                                                                                                                                                                                              <label class="end horizontal" for="end"></label>
                                                                                                                                                                                                              <label class="end vertical" for="end"></label>
                                                                                                                                                                                                            </div>
                                                                                                                                                                                                          </div>
                                                                                                                                                                                                        </div>
                                                                                                                                                                                                      </div>
                                                                                                                                                                                                    </div>
                                                                                                                                                                                                  </div>
                                                                                                                                                                                                </div>
                                                                                                                                                                                              </div>
                                                                                                                                                                                            </div>
                                                                                                                                                                                          </div>
                                                                                                                                                                                        </div>
                                                                                                                                                                                      </div>
                                                                                                                                                                                    </div>
                                                                                                                                                                                  </div>
                                                                                                                                                                                </div>
                                                                                                                                                                              </div>
                                                                                                                                                                            </div>
                                                                                                                                                                          </div>
                                                                                                                                                                        </div>
                                                                                                                                                                      </div>
                                                                                                                                                                    </div>
                                                                                                                                                                  </div>
                                                                                                                                                                </div>
                                                                                                                                                              </div>
                                                                                                                                                            </div>
                                                                                                                                                          </div>
                                                                                                                                                        </div>
                                                                                                                                                      </div>
                                                                                                                                                    </div>
                                                                                                                                                  </div>
                                                                                                                                                </div>
                                                                                                                                              </div>
                                                                                                                                            </div>
                                                                                                                                          </div>
                                                                                                                                        </div>
                                                                                                                                      </div>
                                                                                                                                    </div>
                                                                                                                                  </div>
                                                                                                                                </div>
                                                                                                                              </div>
                                                                                                                            </div>
                                                                                                                          </div>
                                                                                                                        </div>
                                                                                                                      </div>
                                                                                                                    </div>
                                                                                                                  </div>
                                                                                                                </div>
                                                                                                              </div>
                                                                                                            </div>
                                                                                                          </div>
                                                                                                        </div>
                                                                                                      </div>
                                                                                                    </div>
                                                                                                  </div>
                                                                                                </div>
                                                                                              </div>
                                                                                            </div>
                                                                                          </div>
                                                                                        </div>
                                                                                      </div>
                                                                                    </div>
                                                                                  </div>
                                                                                </div>
                                                                              </div>
                                                                            </div>
                                                                          </div>
                                                                        </div>
                                                                      </div>
                                                                    </div>
                                                                  </div>
                                                                </div>
                                                              </div>
                                                            </div>
                                                          </div>
                                                        </div>
                                                      </div>
                                                    </div>
                                                  </div>
                                                </div>
                                              </div>
                                            </div>
                                          </div>
                                        </div>
                                      </div>
                                    </div>
                                  </div>
                                </div>
                              </div>
                            </div>
                          </div>
                        </div>
                      </div>
                    </div>
                  </div>
                </div>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
    <div class="points"></div>
    <label class="start" for="start" tabindex="-1">
          PURE CSS<br>STACK
      </label>
    <button type="reset" tabindex="-1">
          CLICK OR TAP<br>
          TO RESTART
      </button>
  </form>
</body>
</html>